Intelligent Design, the best explanation of Origins

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Intelligent Design, the best explanation of Origins » Photosynthesis, Protozoans,Plants and Bacterias » Chemotrophic bacterias

Chemotrophic bacterias

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1 Chemotrophic bacterias on Tue Mar 04, 2014 5:18 pm

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Chemotrophic bacterias

Chemotrophs are organisms that obtain energy by the oxidation of electron donors in their environments. These molecules can be organic (chemoorganotrophs) or inorganic (chemolithotrophs). The chemotroph designation is in contrast to phototrophs, which utilize solar energy. Chemotrophs can be either autotrophic or heterotrophic.

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2 Nitrobacter on Tue Mar 04, 2014 5:21 pm

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Nitrobacter

Nitrobacter is a genus of mostly rod-shaped, gram-negative, and chemoautotrophic bacteria.

Nitrobacter plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil. Unlike plants, where electron transfer in photosynthesis provides the energy for carbon fixation, Nitrobacter uses energy from the oxidation of nitrite ions, NO2-, into nitrate ions, NO3-, to fulfill their energy needs. Nitrobacter fixes carbon dioxide via the Calvin cycle for their carbon requirements.

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